/**
  * Remove a departmentStaff
  *
  * @param $id
  * @return \Illuminate\Routing\Redirector|\Illuminate\Http\RedirectResponse
  */
 public function removeDepartmentStaff($id)
 {
     if ($id != null) {
         DepartmentStaff::destroy($id);
     }
     return redirect('admins/manage/departmentStaffs');
 }